Match the items listed below with the appropriate description. 
Figure 12.3
-On the figure of the earth's crust,choose the letter that represents cold dense materials falling through the mantle.
Definitions:
Costs
The amount of money that needs to be spent to buy, do, or make something.
Return on Investment
A performance measure used to evaluate the efficiency or profitability of an investment relative to its cost.
Expectations
The beliefs or forecasts about future events affecting economic decisions and behaviors.
Voice Activated Software
Software that is able to interpret and execute commands given through spoken words.
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